Vayupurana 2.34.135

Vāyupurāṇa 2.34.135

ugraseno mahāpatyo vikhyātaḥ kukurodbhavaḥ.
kukurāṇāmimaṃ vaṃśaṃ dhārayannamitaujasām.
ātmano vipulaṃ vaṃśaṃ prajāvāṃśca bhavennaraḥ .. 34.134 ..